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प्रश्न
What is a molecule ? Explain with an example.
उत्तर
Molecule is the smallest particle of a substance (element or compound), which has the properties of that substance. It can exist in a free state.
Example: Oxygen atoms combine and exist in the form of O3 molecules. Solid sulphur has eight sulphur atoms joined together, and exists in the form of S8 molecule.
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संबंधित प्रश्न
Write the molecular formulae of Magenesium oxide :
Write the molecular formula of sulphuric acid.
Write the molecular formulae of Aluminium sulphate :
The valency of sodium is one, write the molecular formula for sodium oxide ?
Fill in the following blanks :
1 mole contains .............. atoms, molecules or ions of a substance.
Which contains more molecules, 10 g of sulphur dioxide (SO2) or 10 g of oxygen (O2) ?
(Atomic masses : S = 32 u ; O = 16 u)
How many units of charge are developed on each atom?
Write the molecular formulae of Magnesium nitride:
Molecule containing more than three atoms are known as ______.
Express each of the following in kilograms
5.873×10−21g
